穿墙雷达人体动作识别技术的研究现状与展望

丁一鹏; 厍彦龙

doi:10.11999/JEIT211051

穿墙雷达人体动作识别技术的研究现状与展望

doi: 10.11999/JEIT211051

丁一鹏^,,
厍彦龙

中南大学物理与电子学院长沙 410083

基金项目: 国家自然科学基金(61501525)，湖南创新型省份建设专项(2020RC3004)

详细信息

作者简介:
丁一鹏：男，1987年生，副教授，研究方向为雷达信号处理

厍彦龙：男，1996年生，硕士生，研究方向为雷达信号处理

通讯作者:
丁一鹏 dingyipeng@sina.com

中图分类号: TN911
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- 被引次数: 0
出版历程
- 收稿日期: 2021-09-28
- 修回日期: 2021-12-12
- 录用日期: 2021-12-14
- 网络出版日期: 2022-01-11
- 刊出日期: 2022-04-18

Research Status and Prospect of Human Movement Recognition Technique Using Through-Wall Radar

DING Yipeng^,,
SHE Yanlong

School of Physics and Electronics, Central South University, Changsha 410083, China

Funds: The National Natural Science Foundation of China (61501525), The Special Foundation of Innovative Province Construction of Hunan (2020RC3004)

摘要

摘要: 在人体目标的动作识别应用中，穿墙雷达(TWR)具有隐蔽性高、探测能力强和不易受环境因素限制等优点，同时兼具良好的目标隐私信息保护能力，在武装反恐、安保监控和医疗看护等领域发挥出重要作用。为了梳理穿墙雷达对人体目标动作识别技术的发展脉络以及预测该技术的未来发展趋势，该文首先简要介绍穿墙探测的工作原理，并对不同体制穿墙雷达的特点进行比较和讨论；然后，围绕穿墙雷达人体动作识别应用中的雷达成像、特征参数提取和动作状态判决等关键技术，对国内外公开发表的相关文献进行了归纳分析；最后，对穿墙雷达的人体动作识别技术研究进行总结和展望，指出该技术在目前实际应用中所面临的潜在问题和挑战。
- 穿墙雷达 /
- 动作识别 /
- 雷达成像 /
- 特征信息提取 /
- 状态判决
Abstract: In applications of human action recognition, Through-Wall Radar (TWR) is a promising tool because of its outstanding advantages in aspects of concealment, detection ability and robustness against environmental restrictions. Besides, TWR can provide targets with satisfactory privacy protection. As a result, TWR is widely used in a series of areas including anti-terrorism, security monitoring and medical caring. To hackle and forecast the development process of the TWR-based human action recognition theory, the detection principle of different kinds of TWRs is first introduced in this article, and their properties are compared. Then aiming at the key technologies involved in human action recognition, such as radar imaging, feature information extraction, and action state judgement, the relevant literature published at home and abroad is classified and analyzed. Finally, the TWR-based human action recognition theory is summarized and prospected, and some potential problems and challenges in practical applications are pointed out.
- Through-Wall Radar (TWR) /
- Action recognition /
- Radar imaging /
- Feature information extraction /
- State judgement

HTML全文

图 1 典型的穿墙雷达目标探测场景示意图

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图 2 常见障碍物材料对不同频率电磁波信号的衰减效用对比图^[13]

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图 3 不同体制穿墙雷达发射信号的波形示意图

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图 4 Soldovieri等人^[38]的人体目标探测场景和成像结果示意

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图 5 Zhang等人^[39]的人体目标探测场景和2维成像结果示意

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图 6 Zhang等人^[40]的人体目标探测场景和3维成像结果示意

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图 7 Dubroca等人^[48]的人体目标探测场景和成像结果示意

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图 8 Gollub等人^[49]的人体目标探测场景和成像结果示意

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图 9 Wang等人^[52]的人体目标探测场景和2维成像结果示意

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图 10 Ahmad等人^[53]的目标探测场景和3维成像结果示意

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图 11 Kong等人^[55]的人体目标探测场景和3维成像结果示意

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图 12 Zhao等人^[56]的人体目标探测场景和成像结果示意

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图 13 Adib等人^[57]的人体目标探测场景和成像结果示意

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图 14 Chen等人^[61]的目标特征参数提取结果示意

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图 15 Kim等人^[62]的目标探测场景与特征参数提取结果示意

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图 16 Zeng等人^[63]的目标探测场景与特征参数提取结果示意

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图 17 Du等人^[65]的目标特征参数提取结果示意

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图 18 Orovic等人^[68]的目标特征参数提取结果示意

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表 1 部分穿墙雷达产品的性能参数

研发机构	产品名称	中心频率(GHz)	带宽(GHz)	最大探测距离(m)	距离分辨率(cm)	主要功能
时域公司(美国)	Radar Vision	3.85	3.5	10	5	2维定位
劳伦斯 ⋅利物摩亚实验室(美国)	MIR-I	2.5	1	50	15	2维定位
卡梅罗公司(以色列)	Xaver 800	4.8	3.4	20	20	2维定位/3维成像
剑桥咨询公司(英国)	Prism 200	1.95	0.5	20	30	3维成像
华诺星空(中国)	CE200	？	？	30	30	2维定位
必肯科技(中国)	警视-2	0.50	？	9	？	2维定位
凌天世纪(中国)	YSR-120	1.2	1.2	12	？	2维定位

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表 2 不同体制穿墙雷达的探测特点比较

雷达体制	发射波形	优点	缺点
窄带穿墙雷达	单频/多频连续波信号	系统简单，抗静态干扰能力强，信号处理速度快	获取的目标信息量少，对目标参数的估计精度低，识别准确率较差，能耗大
超宽带穿墙雷达	窄脉冲信号	穿透能力强，分辨率高	存在探测范围和距离分辨率间的取舍矛盾，抗干扰能力弱，探测存在盲区
	步进频/线性调频信号	同时获得优秀的探测范围和距离分辨率	抗干扰能力弱，信号处理实时性差，难以对快速变化的目标信息做出及时反应
	伪随机码/噪声信号	穿透能力强，分辨率高，抗干扰能力强，隐蔽性强	发射信号的产生困难，系统成本高，功率受限于特定器件限制。信号的伪随机特性容易导致误差累积效应，在长时间工作条件下性能不稳定

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